Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '9d41b5bcc735ace188fa924ea586d9c0d15563263d3a632663db7d6d2a3d7042' 
  AND token = 'EkkyeOyblemrCuBHp94i8V45QeqQVU3r90G07chuV5Q=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00019

JSON explain

{
  "query_block": {
    "select_id": 1,
    "message": "no matching row in const table"
  }
}